Resonant sensor reader

A method for wirelessly reading a resonant sensor associated with a vessel in which a chemical or biological process is occurring, the method comprising:

• positioning a resonant sensor reader proximate the resonant sensor, the resonant sensor reader comprising (a) a reader housing, (b) a signal parameter measuring device disposed within the housing and electrically connected to a computing device, and (d) a plurality of reader antennas electrically connected to the signal parameter measuring device;
• calibrating the resonant sensor reader for reading the resonant sensor by removing background noise;
• collecting signal parameters over a range of frequencies to provide transmission loss data using the signal parameter measuring device and the plurality of reader antennas;
• determining at the computing device change in resonant frequency or transmission loss magnitude for the resonant sensor from the transmission loss data acquired using the resonant sensor reader;
• applying at the computing device a transfer function to correlate at least one of change in resonant frequency or changes in transmission loss to determine at least one physical characteristic associated with the chemical or biological process occurring within the vessel associated with the resonant sensor.

A system for reading a wireless resonant sensor associated with a vessel in which a biological or chemical process is occurring, the system comprising:

• a computing device;
• a resonant sensor reader housing;
• a signal parameter measuring device disposed within the resonant sensor reader housing and electrically connected to the computing device;
• a plurality of reader antennas electrically connected to the signal parameter measuring device and disposed within the resonant sensor reader housing;
• wherein the signal parameter measuring device is configured to sweep frequencies over a range of frequencies to acquire signal parameters for the wireless resonant sensor;
• wherein the computing device is configured to store the signal parameters within a memory;
• wherein the computing device is configured to determine changes in resonant frequency based on the signal parameters and apply a transfer function to one of changes in resonant frequency and changes in transmission loss to determine at least one physical characteristic associated with the biological or chemical process occurring within the vessel.